Studies on Southern Australian Abalone (Genus Haliotis). VIII* Growth of Juvenile H. laevigata

The growth of juvenile H. laevigata was studied by analysis of sequences of length-frequency distributions obtained in below- and above-boulder habitats at West Island, South Australia. The mean growth rate overall is 1.69 mm month-1 and is linear with length for the first 5 years, but thereafter declines with increasing length. The mean growth rate of four groups of marked H. laevigata aged 1 and 3 years is 1.6-2.1 mm month-1, and thus supports the estimation of growth rate from analysis of length-frequency distributions.

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